Although more than two thousand compounds have been identified in tea leaves, most attention has been paid to a family of antioxidants called catechins, such as EGCG.3626 This is because even straight EGCG has been shown to boost metabolism and the rate at which fat is burned at rest.3627 That is one reason most of the spotlight has been on green, white, and oolong teas, as they have about five times more EGCG than black tea.
